20307+2109 COU 222

 
 
20h 30m 39.39s +21 09' 26.9" P.A. 2 sep 1.3 mag 11.48,11.90 Sp A2
 
 
Coord 2000
20307+2109
Discov num
COU 222
Comp
Coord arcsec 2000
20 30 39.39 +21 09 26.9
Date first
1967
Date last
1997
Obs
5
Pa first
3
Pa last
2
P.A. Now (θ)
Sep first
1.1
Sep last
1.3
Sep. Now (ρ)
1.3"
Mag pri
11.48
Mag sec
11.90
delta mag (ΔM)
0.42
Spectral class
A2 (white)
Pri motion ra
-003
Sec motion ra
-003
Pri motion dec
-003
Sec motion dec
-003
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
2.4
Precise sep
1.29
Constellation
Vulpecula
Tycho2
1644-01779-1
Gaia DR2
84663216000
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20307+2109 COU 222 1997 5 2 1.3 11.48 11.90 A2 203039.39+210926.9

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